When Casey grabs the shotgun and shells from Jared's trailer, he has the shells in his hand; when he exits the trailer in the next shot, he is only holding the shotgun.
The knife wound on Katherine disappears, reappears and changes position.
When the car hits the boy on the bicycle, he rebounds off the windshield and rolls down the hood and off the front of the car. When everyone exits the car, the boy is lying on the ground behind it, rather than in front.
When the Blindman talks about the previous group that was killed by the collapse of the Silver Bridge, the scene shows a convertible with the top down and summer clothing. The Silver Bridge collapsed on December 15, 1967, winter not summer.
Bludgeoning the head of a corpse 7 times with a rock would not be mistaken for accidental head trauma.
When Mindy is shown dead on the floor, the camera zooms in on her face. Just before the camera zooms in, Mindy blinks.